Re-loaded Real Player Plus and tried the "add missing media function". On finishing I saved the outcome to a folder, thinking it would have added the info to 580 plus mp3 etc. tracks. 

Well the media details that has been replaced is far from correct. Most tracks are northern soul, but things like Sammy Ambrose - Welcome To Dreamsville is now Lisa Jackson - Danger - Das Gebot der Rache - Teil 44. Another is Peggy Gaines is now 尾崎亜美